"We all four joined hands and we said to Mark Burnett, 'We don't want to be on a show that's promoting any sort of negativity or is about to tearing down the actual talent that gets up on that stage in any way shape or form'," the singer revealed.

She added: "We know what it feels like and so I just feel like we stay genuine and true to that and I think the audience appreciates that."

Her fellow Voice coach Adam Levine made similar comments, suggesting that the NBC series is not comparable to talent shows like American Idol and The X Factor.